Mr Bill wrote:
End User wrote:
That was totally worth watching. The webbed reentry fins were interesting. There must be an interesting development story to go along with those.
Agreed, that reentry burn and landing burn were beautiful. The reentry burn totally brought home how fast that thing is falling from the sky with the flame blasting back up around the rocket.
For more details about the grid fins see Wikipedia
. They used to be aluminium with ablative paint but that kept burning up too much - they still landed fine but with chunks missing. Now they've switched to titanium and those hold up to the insanity that is hypersonic reentry a lot better.